/Engine/Source/Runtime/Experimental/Iris/Core/Public/Iris/ReplicationSystem/ReplicationSystem.h
Registers a NetBlobHandler so that its NetBlob type can be sent and received. The user must be sure to keep the handler valid for the lifetime of the ReplicationSystem. The handler class must have been configured in UNetBlobHandlerDefinitions in order for the call to succeed. Only one instance per class is allowed to be registered.
Whether the handler was succesfully registered or not.
bool RegisterNetBlobHandler ( [UNetBlobHandler](API\Runtime\IrisCore\Iris\ReplicationSystem\NetBlob\UNetBlobHandler) * Handler )